Frequencies for first 10,000 rows of vctnl_gdnc_srvc_cd variable in pos2010 dataset :

       SRV: |
 VOCATIONAL |
   GUIDANCE |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,318       83.18       83.18
          0 |      1,649       16.49       99.67
          1 |          7        0.07       99.74
          2 |         26        0.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017